<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login page</title>
</head>
<body>
    <div style="text-align: center;border: 1px;">
        <form action="LoginServlet" method="post">
            用户名<input type="text" name="username">
            <br/>
            密&nbsp;&nbsp;&nbsp;码<input type="password" name="psw">
            <br/>
            <input type="submit" value="登录">
        </form>
    </div>
</body>
</html>